How to Add an Email Signature in Outlook App on iPhone (iOS)


When installing your email signature into the Outlook App for iOS, you will need to use the HTML source code of the email signature, rather than copying the signature itself.

Step 1:

Open the Outlook App on your iPhone/iPad. Tap the menu button from the top left.

Email Signature Outlook iPhone iOS

Step 2:

Tap the settings gear icon on the bottom left of the menu.

Email Signature Outlook iPhone iOS

Step 3:

When you’re in the settings menu, tap on the signature section.

Email Signature Outlook iPhone iOS

Step 4:

Press and hold over the email signature area, paste the HTML source code of your new signature. 

Email Signature Outlook iPhone iOS

Step 5:

Your email signature is now installed!

21 Replies to “How to Add an Email Signature in Outlook App on iPhone (iOS)”

  1. Thanks for the instructions. I have done this however it only works on a new e-mail. Is there a setting somewhere so that the signature works on replies and fwd e-mails as well?

    1. Hi Matt,

      When you put in your signature, it should also work for replies and forwards. When replying or forwarding an email, you may need to expand the window in order to see your email signature there. If you don’t expand the window, it doesn’t show you the signature.

      Hope that makes sense.

  2. My jpeg or picture will not show up on my signature in the iOS outlook app. I have copied and paste from my outlook on my pc, but the image will not show. Please advise.

    1. Hi Michael,

      Unfortunately, the Outlook app for both iOS and Android doesn’t support HTML signatures. This means you can only have a plain text email signature (with no images) when you use it.

  3. After creating my signature I sent a test and my signature block is double spaced not single spaced. Us there a way to correct this?

    1. Hi Dot,

      If you’ve installed your signature in Outlook App for iOS, it will convert the signature from HTML to Plain Text. This is because the Outlook App doesn’t support HTML signatures. Sometimes, in the process of converting it from HTML to Plain Text, it will add double spaces in between the signature fields.

      Feel free to send through a few screenshots to us so we can take a look.

      You can contact us from here:

      1. Is there a way to change the font at least? I understand that outlook app doesn’t support html text but it always defaults to new time roman. This problem seems fixable and outdated. Please advise, Thanks.

          1. Please update the app to support HTML email signatures, this day and age, this really even be an issue, nor changing the font. Thanks for the prompt attention to this.

          2. Hi MB,

            Unfortunately, we don’t have control over the Outlook App so we cannot update it – although we wish we could! The only company who can update it is Microsoft.

    1. Unfortunately not. Outlook for iOS does not support HTML email signatures at this time and only supports plain text email signatures which means you cannot insert a logo to it.

  4. Just an update for everyone.

    It appears as though Microsoft has enabled the ability to add HTML signatures for the Outlook App for iOS.

    However, when installing the signature, you MUST use the HTML source code of the email signature, not the finished signature itself.

    I’ve updated the installation guide to reflect the changes 🙂

    1. Hi Chris,

      To get the source code of your email signature from Gimmio, click on the “Click Here if you need the HTML source code (advanced).” part in the installation tab.

      Gimmio Email Signature Source Code

  5. Hi Chris,

    Thank you very much for this helpful guide. Unfortunately, I have two issues remaining:

    (1) the html source code messes up the line spacing

    (2) the picture included in the html source code is not properly displayed

    Are there any solutions available to my problems?

    Thanks very much in advance
    Kind regards,

    1. Hi Alex,

      In regards to the source code line spacing, the source code output from Gimmio is minified. This means all the spacing is removed in order to make the code smaller in size so it takes up less space on mail servers when your email is sent. You can “beautify” the source code if you like, which will add the spacing back in by pasting the HTML code here:

      In regards to the picture that is not displayed correctly, would you mind sending a screenshot of the issue to so we can take a closer look for you?

      Thanks and speak soon 🙂

  6. I do not see any direction on how to obtain the HTML source code as directed in step 1. Can anyone direct me on this?

    1. Hi Tara,

      When you’ve created your signature in Gimmio, if you head over to the Installation tab, in step 2, click on “Click Here if you need the HTML source code (advanced).” and that will get you the HTML source code.

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